# Error opening VTM file
**URL:** https://discourse.paraview.org/t/error-opening-vtm-file/14384
**Category:** ParaView Support
**Tags:** vtk
**Created:** [April 11, 2024, 9:44am UTC](https://discourse.paraview.org/t/error-opening-vtm-file/14384 "2024-04-11T09:44:53Z")
**Posts on this page:** 9
**Page:** 1
### Author:  [@thorsfield](https://discourse.paraview.org/u/thorsfield)
#### Post date: [April 11, 2024, 9:44am UTC](https://discourse.paraview.org/t/error-opening-vtm-file/14384/1 "2024-04-11T09:44:53Z")
Hello,
I am having issues opening a .vtm file. I get the error “Cannot read cell offsets from Cells in piece 0 because the “offsets” array is not long enough.” I am not sure why this is happening.
Please could someone assist?
Many thanks
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [April 15, 2024, 11:02am UTC](https://discourse.paraview.org/t/error-opening-vtm-file/14384/2 "2024-04-15T11:02:05Z")
Please share your data
---
### Author:  [@thorsfield](https://discourse.paraview.org/u/thorsfield)
#### Post date: [April 16, 2024, 12:07pm UTC](https://discourse.paraview.org/t/error-opening-vtm-file/14384/3 "2024-04-16T12:07:53Z")
Thank you. Please let me know if you have any issues.
> **[VTM.zip](https://wetransfer.com/downloads/4b8b0f52de5f563f1b67674ddd9145bc20240416120447/df15a9)**
>
> 1 file sent via WeTransfer, the simplest way to send your files around the world
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [April 17, 2024, 6:05am UTC](https://discourse.paraview.org/t/error-opening-vtm-file/14384/4 "2024-04-17T06:05:13Z")
Works fine with ParaView 5.12.0 binary release
---
### Author:  [@thorsfield](https://discourse.paraview.org/u/thorsfield)
#### Post date: [April 17, 2024, 2:42pm UTC](https://discourse.paraview.org/t/error-opening-vtm-file/14384/5 "2024-04-17T14:42:53Z")
Thanks for this, I uninstalled and updated and it seemed to work. I have another issue which is that I have internal surfaces for some reason. This is ok for plotting sections but causes streamtracers to stop. is there a was of fixing this? See image
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [April 18, 2024, 7:15am UTC](https://discourse.paraview.org/t/error-opening-vtm-file/14384/6 "2024-04-18T07:15:04Z")
Use Tetrahedralize and CleanToGrid filters
---
### Author:  [@thorsfield](https://discourse.paraview.org/u/thorsfield)
#### Post date: [April 30, 2024, 10:34am UTC](https://discourse.paraview.org/t/error-opening-vtm-file/14384/7 "2024-04-30T10:34:32Z")
I have tried this but the issues remain. Are there any particular settings I should use? Thanks
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [April 30, 2024, 10:58am UTC](https://discourse.paraview.org/t/error-opening-vtm-file/14384/8 "2024-04-30T10:58:28Z")
transfer expired, please share the file again.
---
### Author:  [@thorsfield](https://discourse.paraview.org/u/thorsfield)
#### Post date: [April 30, 2024, 12:00pm UTC](https://discourse.paraview.org/t/error-opening-vtm-file/14384/9 "2024-04-30T12:00:18Z")
> **[VTM.zip](https://wetransfer.com/downloads/b46a471960a137bc194e6555a342b92b20240430115703/5ed0a7)**
>
> 1 file sent via WeTransfer, the simplest way to send your files around the world